LP2951CD-3.3G ON Semiconductor, LP2951CD-3.3G Datasheet - Page 8

• Manufacturer Part Number: LP2951CD-3.3G
• Description: IC REG LDO 100MA 3.3V 8-SOIC
• Manufacturer: ON Semiconductor

Specifications of LP2951CD-3.3G

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 30V
• Voltage - Dropout (typical): 0.35V @ 100mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 30 V
• Output Voltage: 3.3 V
• Output Type: Fixed
• Dropout Voltage (max): 0.08 V at 100 uA
• Output Current: 100 mA
• Line Regulation: 0.2 %
• Load Regulation: 0.2 %
• Voltage Regulation Accuracy: 1 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Reference Voltage: 1.26 V
• Primary Input Voltage: 30V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 350mV
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +125°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

- 50
200
150
100
100
50
4.0
3.0
2.0
1.0
80
60
40
20
0
0
0
100
0
0
LP2951CN
C
V
I
T
L
out
A
L
= 400 mA to 75 mA
= 1.0 mF
= 25°C
= 5.0 V
0.5
5.0
Figure 12. Load Transient Response
Figure 16. Maximum Rated
10
1
Figure 14. Output Noise
1.0 k
V
Output Current
in
1.5
f, FREQUENCY (Hz)
15
, INPUT VOLTAGE (V)
T
A
t, TIME (ms)
= 75°C
C
C
L
L
20
2
= 1.0 mF
= 100 mF
I
Load
2.5
25
10 k
T
V
A
out
= 25°C
30
3
I
T
V
LP2951C
L
A
O
= 100 mA
= 25°C
= 5.0 V
3.5
35
http://onsemi.com
100 k
40
4
4.0
2.0
0
- 2.0
- 4.0
- 6.0
400
200
0
- 200
- 400
8
10000
1000
0.01
100
0.1
10
80
60
40
20
Figure 17. Output Stability versus Output Capacitor
1.8
1.6
1.4
1.2
1.0
0.8
1
0
1.0
- 40
0
Lower unstable region is for 0.1 mF only.
1 mF and 100 mF show no instability with low ESR values.
T
C
V
V
A
in
out
L
- 20
= 25°C
= 1.0 mF
Figure 15. Shutdown Threshold Voltage
10
= 6.0 V
= 5.0 V
20
10
Figure 13. Ripple Rejection
0
Unstable Region for 0.1 mF capacitor only
Output “On"
30
20
versus Temperature
Unstable Region
t, TEMPERATURE (°C)
f, FREQUENCY (Hz)
Stable Region
Output Current (mA)
100
40
40
Change
Output “Off"
50
60
1.0 k
60
80
I
L
= 0.1 mA
100
70
10 k
120
80
100 mF
0.1 mF
V
out
140
90
= 5 V
100 k
100
160